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2.03 Basic Operation
A conveyor scale's primary function is to continuously measure the material weight on the belt at
any particular instant in time and then display the material flow RATE and TOTAL weight. The
main components of the scale system are the scale carriage, the Tecweigh 20 Weight Processor
(WP20), speed sensor, signal conditioner (SC), load cells or LVDT sensors, calibration weights
with lifter arm(s), and the weigh idler.
The scale carriage mounts on the conveyor stringers and uses one or two of the conveyor’s
existing idlers depending on which
Tecweigh
scale model was purchased. Models WY10 and
WY15 replaces one idler while the WY20 and WY25 replaces two idlers. The speed sensor
wheel rides on the return side of the belt to indicate the speed the belt is moving. Load cells or
LVDT sensors on the scale carriage measure the weight of material on the belt. The weight and
speed signals are sent to the signal conditioner mounted on the scale carriage. These signals are
electronically conditioned and then transmitted to the WP20 Weight Processor via RS485 serial
communications. This conditioning function also allows the FC20 to be mounted remotely from
the scale when necessary. The WP20 does all RATE, TOTAL, and belt speed calculations for
display. It can also send that and additional information to remote devices.
Содержание Tecweigh 20
Страница 2: ... 1 ...
Страница 10: ... 9 2 09 I O Quick Reference Guide ...
Страница 20: ... 19 ...
Страница 24: ... 23 4 03 WY15 and WY25 Scale Wiring load cells ...
Страница 25: ... 24 4 04 HY15 and HY25 Field Wiring ...
Страница 26: ... 25 4 05 WY10 WY10HD and WY20 Scale Wiring LVDTs ...
Страница 27: ... 26 4 06 Chart Recorder Data Logger using the 4 20 ma output ...
Страница 28: ... 27 4 07 Chart Recorder Data Logger using the HFR output ...
Страница 29: ... 28 4 08 Remote Rate Total Display 4 09 Remote Tons Counter ...
Страница 30: ... 29 4 10 Radio Transceivers Local Scale Remote Processor ...
Страница 31: ... 30 4 11 Radio Transceivers Local Processor Remote PLC PC or Remote Display ...
Страница 32: ... 31 4 12 Radio Transceivers Local DC Generator Remote Processor ...
Страница 33: ... 32 4 13 Radio Transceivers Local DC Generator and Processor ...
Страница 34: ... 33 4 14 Multiple Processors to Tecweigh Multi Scale Display MSD ...
Страница 35: ... 34 4 15 Interposing Relay External 120 vac Power 4 16 Interposing Relay Internal 30 vdc Power ...
Страница 61: ... 60 SC300 PCB WY15 and WY25 SC400 PCB WY10 and WY20 ...
Страница 71: ... 70 10 01 WY10 Dimensions CHAPTER 10 DIMENSIONS ...
Страница 72: ... 71 10 02 WY10 HD Heavy Duty Dimensions ...
Страница 73: ... 72 10 03 WY15 Dimensions ...
Страница 74: ... 73 10 04 WY20 Dimensions ...
Страница 75: ... 74 10 05 WY25 Dimensions ...
Страница 76: ... 75 10 06 HY15 and 25 Dimensions ...